Description
ODD Sizes: 3.5mm (5), 4mm (7), 4.5mm (9), 5mm (11) and 5.5mm (13) - EVEN Sizes: 3.25mm (4),3.75mm (6), 4.25mm (8), 4.75mm (10) and 5.25mm (12). Both of these keys are Made of BRASS.The numbers of key are starting from 4 to 13. Some extra larges key holes are not available in these keys..These keys come with total 10 prongs (Each Key with 5 prong), so this is best item as master key for all your clock..These two keys are solution for you. Most of all winding clock keys available in these 10 prongs.